WPF，UserControl怎么使用触发器呢？

Question

http://social.msdn.microsoft.com/Forums/zh-CN/d2a199ed-4cf3-48d0-9055-9fdc857f500c/datatriggervalue-usercontrol

Answer 1

 <Style x:Key="test">
            <Style.Triggers>
                <Trigger Property="Control.IsMouseOver" Value="True">
                    <Setter Property="Control.Background" Value="Red"/>
                </Trigger>
            </Style.Triggers>
        </Style>

Answer 2

基本上，我使用 Blend 开发时支持的 TriggerAction，而不手写“触发器”代码。

Answer 3

是这样的。如果你需要设置其它控件的属性，直接指定Name就可以。例如<Trigger Property="IsMouseOver" Value="True">
    <!-- 设置鼠标指向时的颜色 -->
    <Setter TargetName="bd1" Property="Background" Value="#FFC1E9FF" />
</Trigger>

Answer 4

我顶楼的代码，并没有Style啊，是一个UserControl

Answer 5

在UserControl中，无法写属性触发器吗？

Answer 6

这是blend自动生成的代码：
<UserControl
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/up-compatibility/2006" x:Name="userControl"
mc:Ignorable="d"
x:Class="WpfApplication1.UserControl1"
d:DesignWidth="640" d:DesignHeight="480" Background="Black">
<UserControl.Resources>
<Storyboard x:Key="OnMouseEnter1">
<ColorAnimationUsingKeyFrames Storyboard.TargetProperty="(Panel.Background).(SolidColorBrush.Color)" Storyboard.TargetName="userControl">
<EasingColorKeyFrame KeyTime="0" Value="Red"/>
</ColorAnimationUsingKeyFrames>
</Storyboard>
</UserControl.Resources>
<UserControl.Triggers>
<EventTrigger RoutedEvent="Mouse.MouseEnter">
<BeginStoryboard Storyboard="{StaticResource OnMouseEnter1}"/>
</EventTrigger>
</UserControl.Triggers>

<Grid x:Name="LayoutRoot">
</Grid>
</UserControl>

Answer 7

楼主学一下blend会让你轻松许多